Marathon runners, prospective runners, and followers of marathon races will value this photo-illustrated guide to 50 of the world’s best marathons. Each marathon is given its own detailed description, which includes

A rating for comparative difficulty

An expert analysis of the course

The time year when it takes place

Specifics on when and how to enter

Course-specific training tips

Just a small sampling of the marathons described include

In the U.S. and Canada: Boston, New York, Washington, Toronto, Niagara Falls

In Australia and New Zealand: Auckland, Sydney, the Australian Outback